Question

The breathing process is controlled by (1 point)
Responses

the diaphragm.
the diaphragm.

the pharynx.
the pharynx.

blood vessels.
blood vessels.

rib muscles.

Answer 1

The breathing process is primarily controlled by **the diaphragm**. The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity that contracts and relaxes to facilitate the inhalation and exhalation of air. While rib muscles (intercostal muscles) also play a role in the mechanics of breathing, the diaphragm is the main muscle responsible for this process.